Means for setting end stones in watches



Aug. 11, v192s.

B. S. CODDING KEANSPOR SETTING END STONES IN WATCHES -Filed latch 1.1924 Patented Aug. 11, 1925n UNITED STATES BERNARD Si. CODDING, OlEWARREN. ARIZONA.

MEANS FOR SETTING END STONES IN WATCHES.

Application filed March 1, 1924. Serial No. 696,297.

To @ZZ whom it may concern:

Be it known that I, BERNARD t3. CoDDING, a citizen of the United States,residing at Warren, in the county of Cochise and State of Arizona, haveinvented new and useful Improvements in Means for Setting End Stones inlVatches, of which the following is a specification.

The object of this invention is to provide means adapted to set anend-stone eccentrically with reference to a conical pivot or staff of awatch, and with reference to the jewel in which the pivot is mounted,for rotation.

A further object is to provide an eccentrically mounted end-stone whichmay be rotated slightly when it has become pitted, so that a new surfacewill be presented, and the refinishing or renewal of the stone will notbe required.

A further object is to avoid the loss of time incident to the operationof renewing or refinishing a stone of this kind, and likewise to avoidthe expense involved.

YVith the foregoing and other objects in view, the invention consists inthe novel construction and arrangement of elements described,illustrated and. claimed, it being understood that modifications may bemade within the scope of the claims without departing from the spirit ofthe invention.

The stones provided for reducing friction and end thrust of certain ofthe pivots in all grades of watches designed for eiiicient service, aresubject to wear, and when they become pitted, complete and satisfactoryrepairs can only be made by renewing the stones. In order to avoid thisexpense, refinishing or some other expedient is resorted to, for partlymeeting the difliculty. My

purpose is to provide a stone the position of which may be changedalmost instantly, for presenting an entirely new surface, without'removal, with the result that the bear ing will then function ascorrectly as when new.

It is difiicult to ascertain the extent of repairs required when a watchis presented by a customer for attention, and the watchmaker frequentlyfinds .later that complete repairs will be more expensive than wasanticipated, or if made within the estimate, the results will beunsatisfactory. This difficulty is also avoided under the conditionshere disclosed.

In the accompanying drawings, Figure l a view in section through a holejewel, an end stone, and the settings therefor; Figure 2 is a plan viewThe element in which the settings are mounted is designated l, and thiselement is machined to receive the detachable members which are held inposition by screws 2. An end stone is desigated 3, and the sets tingtherefor is shown at 4. The setting 5 for the hole jewel 6 has an outerflange 7 engaging iiange 8 of element 1, for prevent* ing movement inone direction.

The setting 4: is of greater diameter than setting 5 and therefore thebore 9 for setting l is correspondingly greater than the bore l0 for theother setting. These bores and settings are eccentric with reference toeach other, and the settings, as well as the stone and jewel, arelikewise eccentric with reference to each other. The drawing shows thatthe screws 2 engage the setting il, and the latter holds the setting ofthe jewel, the two settings being in contact when the stones are incontact.

When the end stone 3 becomes pitted, it is only necessary to rotate thesetting 4- very slightly in order to present an entirely new surface,and restore the original conditions, without expense for this particularitem, and with the assurance of satisfactory results. In view of thelarge number of new positions possible, this operation may be repeated agreat number of times with equal success.

It is unnecessary to add that this type of mounting may be employed inconnection vith endstones wherever used, as in other time keepingdevices, speedometers, electric meters, and the like.

Vshat I claim is:

l. The combination with a watch jewel and a setting therefor, of meansfor mounting the setting, said means having a bore eccentric withreference to the setting, an end stone, and means for mounting the endstone concentrically with the bore and eccentrically with reference tothe jewel.

2. The combination with an element having a plurality of bores eccentricwith reference to each other, a jewel and a setting therefor mounted inone of the bores, of an end stone and a setting therefor mountedconcentrically in the other bore and eccentrically with reference to thejewel.

3. The combination with an element havmeme 'or retaining the setting; ofthe ent! mg a, plurality of 1901765 @00mm-ic. with perfstom :mit heldngjIthe latter in Contact with erenee to each other, a jewel and :1 settingthe setting' of they Jewel when the end stone 10 therefor mounted in oneof the bores, ot an engages the jewel. end stone and a setting thereformQunted In testlmony whereof I am); my Slgna eoncentreally in the otherbore and eeeen- UI'G- L( treally With reference to the jewel, andBERNARD S. CODDING.

